TYAN S5393 Manual page 36

3.2.2 Memory Cache
This setting allows you to tweak the various cache settings for optimal performance of
your system. Press Enter to display the various cache settings.
Main Advanced
Cache System BIOS area:
Cache Video BIOS area:
Cache Base 0-512K:
Cache Base 512K-640K:
Cache Extended Memory Area:
Cache A000 – AFFF:
Cache B000 – BFFF:
Cache C800 – CBFF:
Cache CC00 – CFFF:
Cache D000 – D3FF:
Cache D400 – D7FF:
Cache D800 – DBFF:
Cache DC00 – DFFF:
Cache E000 – E3FF:
Cache E400 – E7FF:
Cache E800 – EBFF:
Cache EC00 – EFFF:
F1 Help
↑↓
Esc Exit
← →
Cache System BIOS Area
This feature is only available when the system BIOS is shadowed. It enables or disables
the caching of the system BIOS ROM at F0000h-FFFFFh via the L2 cache. This greatly
speeds up accesses to the system BIOS. However, this does not necessarily make the
system perform better because the OS does not need to access the system BIOS often.
As such, it would be a waste of L2 cache bandwidth to cache the system BIOS instead of
data that are more critical to the system's performance. In addition, if any program writes
into this memory area, it will result in a system crash. So, it is recommended that you write
protect this area for optimal system performance.
Uncached / Write Protect
Cache Video BIOS Area
This feature is only valid when the video BIOS is shadowed. It enables or disables the
caching of the video BIOS ROM at C0000h-C7FFFh via the L2 cache. This greatly speeds
up accesses to the video BIOS. However, this does not necessarily make the system
perform better because the OS bypasses the BIOS and uses the graphics driver to
access the video card's hardware directly.
PhoenixBIOS Setup Utility
Security
Memory Cache
[Write Protect]
[Write Protect]
[Write Back]
[Write Back]
[Write Back]
[Disabled]
[Disabled]
[Write Protect]
[Write Protect]
[Disabled]
[Disabled]
[Disabled]
[Disabled]
[Write Protect]
[Write Protect]
[Write Protect]
[Write Protect]
Select Item -/+
Select Menu Enter
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TPM State Power
Change Values
Select
Sub-Menu
36
Boot Exit
Item Specific Help
Controls caching of
system BIOS area.
F9 Setup Defaults
F10 Save and Exit